LV5747TT Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – 1-channel Step-down Switching Regulator

Ordering number : ENA1448
LV5747TT
Bi-CMOS LSI
1-channel Step-down Switching
Regulator
Overview
The LV5747TT is a 1-channel step-down switching regulator.
Functions
• 1 channel step-down switching regulator controller.
• Frequency decrease function at pendent.
• Load-independent soft start circuit.
• ON/OFF function.
• Built-in pulse-by-pulse OCP circuit. It is detected by using ON resistance of an external MOS.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
supply voltage
VIN, SW
HDRV, CBOOT
Symbol
VIN max
Conditions
LDRV
Between CBOOT to SW,
Between CBOOT to HDRV
EN, ILIM
Between VIN to ILIM
VDD
SS, FB, COMP
Allowable Power dissipation
Junction temperature
Pd max
Tj max
Mounted on a specified board. *
Operating temperature
Topr
Storage temperature
Tstg
* Specified board: 35mm × 32mm × 1.6mm, glass epoxy 2-layer board.
Ratings
Unit
45
V
45
V
52
V
6.0
V
6.0
V
VIN+0.3
V
1.0
V
6.0
V
VDD+0.3
V
0.75
W
150
°C
-40 to +85
°C
-55 to +150
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
42209 MS 20090402-S00001 No.A1448-1/5